Doffer.



B. A. PETERSON. DOFFEE.

APPLICATION FILED JAN.6, 1912.

Patented Dec. 29, 1914.

5 SHEETS-SHEET 1.

B. A. PETERSON.

DOFFBR. APPLICATION FILED JAN. 6, 1912. 7 1,1 22,41 7. Patented-Dec. 29, 1914.

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- b I l 3 I 3 w I B. A. PETERSON.

DOFFER. I

APPLICATION FILED JAILG, 1912.

Patented Dec. 29, 1914.

5 SHEETSSHEET4.

IIIIII/III ;IIIIIIIIIIIIIIIIIII/IIIIIIIIIII/IIIIIIIII/II/IIIIIIIIIIIIIIIII B. A. PETERSON.

DOFFERI APPLICATION FILED JAN.6,1912.

1, 1 ZZAl 7 Patented Dec. 29, 1914.

5 SHEETS -SIIEET 5.

TE sragnsyunr oFriC BUR'I' A. PETERSON, OF ROCKFORD, ILLINOIS, ASSIGNOR "T0 HOWARD D. COLMAN, LUTHER L. MILLER, AND HARRY A. SEVERSON, COPARTNERS DOING BUSINESS AS BARBER-COLMAN COMPANY, OF ROCKFORD, ILLINOIS.

IDOFFER.

To all whom it may concern Be it known that I, BURT A. PETERSON, a

citizen of the United States, residing at Rockford, in the county of Winnebago and State of Illinois, have invented certain new and useful Improvements in Dofi'ers, of which the following is a specification.

This invention relates to spinning-frame doifers of the type in which the dofi'er travels along the side of the spinning frame,

such a machine being shown in Patent No.

through the upper portion of a dofier embodying the features of my invention. Fig.

1 is a plan View, on a smaller scale, of certain parts shown in Fig. 1. Fig. 2 is a plan view with parts broken away and with the magazine omitted. Fig. 3 is a vertical section on line 3 3 of Fig. 2, upon an enlarged scale. Fig. 4 is a vertical sectional view taken'in the plane of dotted line 4 1 of Fig. 2. Fig. 5 is a transverse section through a support provided in the doffer for the magazine closure, and showing also certain pa'rts attached to said support. Fig. 6 is a fragmental vertical sectional View illustrating the lower part of the magazine and its closure, together with the means for operating the latter. Fig. 7 is a section on line 7 7 of Fig. 6. Fig. 8 illustrates a portion of the means for operating the closure, the parts being shown in the position they occupy when the closure is in its locked position. Fig. 9 is a view through certain parts taken in the plane of line 9 9 of Fig. 6. Figs. 10

and 11 are detail views of lugs comprised in the means for feeding the bobbins. Figs. 10 and 11 are sectional views of guide "means associated with said feeding means. Fig. 12 illustrates a yielding connection between the bobbin-feeding means and its driving means. Fig. 13 is a fragmental side elevation of the bobbin magazine. Fig. 14 is an under side Specification of Letters Patent. Pate t d D 29 1914.

Application filed January 6, 1912. SeriaI No. 669,768.

view of said magazine. Fig. 15 is a detail perspective view of one of the elements composing the magazine. Fig. 16 is a fragmental view of the magazine taken from the left-hand side of Fig. 13. Fig. 17 is a fragmental sectional view of the magazine. Fig. 18 is a transverse section through the magazine closure. Fig. 19 is a transverse section through one of the elements of the magazlne.

The embodiment herein shown of my invention 18 particularly adapted to operate upon weft or filling bobbins. They are herein shown as arranged in a plurality of vertical tiers in the magazine, the butts ofall of the bobbins being arranged at the rear side of the magazine. The latter comprises two end frames 1 and 2, and a rear wall formed from a single sheet of metal folded to form partitions 3. The spaces between adjacent partitions extend from one end of th.magazine to the other, the width of eaclh such space being but slightly greater than the diameter of the bobbin butt, whereby each space is adapted to contain a vertical tier i of butts. In order'to limit endwise movement of the bobbins in the magazine and to maintain the butts in substantially vertical alinement, I provide suitable means, as, for example, beads 1 formed upon the inner ends of the partitions, each bead overhangin two adjacent butt spaces.

The tips or bodies of the bobbinsare held in vert cal alinement by means consisting, in

part, of partition-forming elements 5 (Fig. 19), each of which is bent up from sheet metal and which comprises a stiffening web 6 of double thickness, and flanges 7 extending at right angles to said web, the edge portions of said flanges preferably being rounded as indicated in the drawings. The ends of the partition-forming elements 5 are secured to cross-pieces 8, each preferably formed of sheet metal and suitably flanged as at 9, so as to possess thenecessary rigidity. The cross-pieces 8 extend from side to side in each end-frame and are flanged at one end (as at S) for attachment to the endframe. The flanges 9 are cut away at the rear side of the magazine, to accommodate the partitions 3, and the ends of said partitions (with the exception of the outside partitions) are slotted to receive the crosspieces 8. Within the end folds of the sheet constituting the rear wall of themagazine are filler pieces 10 (Fig. 14). To assist in holding the outer tiers of bobbins in alinement 1 provide flanges 11 extending between the end-frames 1 and 2. The fdrward corners of the magazine may bestrengthened, if desired, by means of angular braces 12 extending between the end frames.

It will be seen that the magazine is constructed entirely of sheet metal, the parts being preferably welded together.

By reason of the location of the partitionforming members 5 and the flanges 11, as shown in the drawings, the forward side of the magazine is entirely open, thus permitting the quantity and arrangement of the bobbins in the magazine to be readily noted.

The lower end of the magazine is closed to the exit of bobbins, by means of a removable clcsure. Either end of the magazine, however, may be the lower end, the magazine being so constructed that it may be used upon a doffer traveling in a right-hand direction along a spinning frame, or upon a dcfier traveling toward the left. The closure consists of aplate 13 having inclined side flanges 14 and right-angular end flanges 15. The closure is arranged to underlie the center of gravity of the bobbins, the crosspieces 8 at each end of the magazine'being cut away, as at 16 (Fig. 17), to accommodate the closure. The latter is arranged to be locked in position by means such as a latch 17 at each end of the closure, eachlatch being herein shown as mounted for limited sliding movement by means of rivets 18 extending through slots 19 in the latch. The outer ends of the latches are arranged to pass through slots in the flanges 15 and into slots 20 in the end frame of the magazine. Each end-frame is thus slotted, as shown in Fi 1.

The framework of the dofi'er may be of any suitable construction. In the form herein shown, the upper portion of the framework ccnsists of two columns 21 and 22, the

7 upper ends of which are rigidly connected by means of a bracket 23. The magazine -is supported upon a seat consisting, for example, of two parallel rails 24 and 25 (Figs. 2 and 4) and isheld against displacement by suitable means, as, for instance, two rigid hooks 26 and 27, two stop flanges 28 and 29, and a hook 30 fixed upon a shaft 31 journaled in the framework, said hook being normally held in operative position by a torsion spring An arm 33 fast on the shaft 31 provides means for withdrawing the hook 30 from engagement with the magazine.

34 are guides to assist in properly locating the magazine upon the doffer. After the magazine has been positioned upon the doffer, the closure 13 is lowered so as to permit the tiers of bobbins in the magazine .ed a tubular stem 36, to the upper end of which is fixed an elongated support 37 for theclosure 13. When the closure 13 lies upon the support 37, said closure is held against lateral displacement by means of the flanges l4 and against endwise displacement by the flanges 15. The stem 36 and support 37 are prevented from turning by any suitable means, as, for example, two guide fingers 38 fixed to said support and arranged to slide in contact with a portion of the supporting frame. In the lower end of the tubular stem 36 is fixed a member 39 having a rounded lug 40 thereon. The stem 36 is arranged to be moved upwardly to raise the closure 13 into operative relation to the magazine by means of a cam plate 41 (Fig. 4) fixed with relation to a hand lever 42 pivoted at 43 upon a bracket 44 secured to the column 21, said'cam being arranged to operate against the lug 40. Upward swinging movement of the cam plate may be limited in any suitable way, as, for example, by means of a stop 45 fixed to said cam plate in position to contact the lug 40. Upon the cam-plate 41 is a cam surface 46 and a dwell 47.

Each latch 17 is moved into and out of locking position by means comprising a member 48 pivoted at 49 between brackets 50 fixed to the lower side'of the support 37. Each member 48 has a notch 51 therein to receive an angular lug 52 upon the inner end of the adjacent latch 17. The members 48 are simultaneously moved upon their pivots -to slide the latches 17 in and out by means comprising a rod 53 guided at its lower end Within a central opening in the member 39. Across-head 54secured to the upper end of said rod is guided in diametrically opposite slots formed in the stem 36 and a tube 55 fitting within and fixed with relation to said stem. The opposite ends of the cross-head 54 are provided with pins 56 which lie within elongated openings 57 in the members 48. It will be seen that said members are in the nature of bell-crank levers and may be moved in unison by moving the rod 53 vertically with relation to the stem 36. Such movement of the rod in an upward direction is caused by acam 58 fixed to the cam plate 41. in such position as to engage the rod 53 after'the cam 46 has at one end of the cam 58. Downward movewas ment of the rod 53 with relation to the stem 36 is caused by a coiled spring 60 bearingat oneend against a washer 61, which in turn bears against a shoulder 62 on the rod, the other end of said spring bearing against a Washer 63 which rests against the end of the tube 55.

The operation of the closure-operating devices is as follows: Assuming said devices to be in the position indicated in Fig. 6, a magazine is placed upon the doffer and secured in place by means of the hooks 26, 27 and 30. The members 48 stand in proper position to receive the lugs 52 within the recesses 51.,

The'operator then raises the hand lever 42, whereby the dwell 59 and the cam surface 58 are successively Withdrawn from beneath the rod 53, thus permitting the spring 60 to push said rod down and swing the members 48 inwardly toward one another, and thereby 'causing the latches 17 to be withdrawn from the slots 20. By the time the cam surface 58 has passed out from beneath the rod 53, the dwell 47 has moved out from under the lug 40, whereupon the weight of the closure 13, the support 37 and connected parts, together with the weight ofthe bobbins, causes said closure and support to descend while the cam surface 46 is moving into the position shown in Fig. 4. As indicated insaid figure, the weight of the support 37 and connected parts is directly above the axis of the cam 41; therefore the weight of said parts locks the device in the position shown in Fig. 4 against any displacement which might otherwise be caused by vibration of the doffer when in operation. When the closure 13 is to be replaced, the operator swings the hand lever 42 downward, during which movement the cam surface 46 first raises the closure into operative relation to the magazine, and thereafter the cam 58 raises the rod 53 and thereby causes the latches 17 to be projected outwardly into .the slots20. The support 37 is locked in its upper position by reason of the dwell 47 being then directly above the axis 43; .and the latch-operating members 48 are locked in 'the receiving position because of the dwell 59 being vertically alined with said axis.

The bobbin-feeding means consists ofa conveyer comprising two chains, eachprovided with recesses to receive bobbins. In the initial position of the doffer mechanisms, the conveyer chains stand in the position in dicated in Figs. 1 and 2, so that as the closure 13 is lowered, the tiers of bobbins settle until the lowermost bobbin in each tier lies within opposite recesses in the two chains. As the conveyer travels, the bobbins thereon are moved under the tiers and discharged at the right-hand side (Fig. 1). The bobbins are exhausted-in regular succession, beginning at the side at which the conveyer enters, namely, the left-hand side (rethe bobbins are moved under the tiers, the weight'of said tiers, acting upon the butts of the bobbins being conveyed, sometimes causes the tips of the bobbins to tilt up- In the embodiment herein shown, the tipconveying chain. is adapted to engage the bobbin at approximately midway the length of the latter, and the tip-receiving recesses are made relatively deep in order to prevent dislodgment of the bobbins.

The bobbin-conveying chains extend over sprocket wheels 64, 65, 66 and 67 (Figs. 1, 2 and 3). The sprocket wheels 64 and 65 are fixed upon a shaft 68 j'ournaled in the framework, the sprocket wheels 66 and 67 being rotatably mounted upon short shafts 69 adjustably supported to permit of taking upslack in the chains.

The tip-conveying chain may be furnished in any suitable manner with lugs providing between them recesses to receive the bobbin tips. Herein I have shown, by way of'example, lugs 7Q providing recesses 71 for the tips. The upper run of the tip-conveying chain is supported upon a rail 72 in the supporting frame, and is held against u ward displacement by means of flanges 73 on the lugs running beneath an angular with the guide 78 to prevent upward displacement of the chain.

80 (Fig. 4) is a rail or uard'to limit downward movement of the tips of the bobbins; and 81 is a rail or ledge performing a similar function with respect to the butts.

The bobbin conveyer may be driven in any suitable manner, but preferably has a yielding connection with its actuating means. Herein I have shown a vertical shaft 82 (Fig. 1), to the upper'end of which is fixed a spiral gear 83 (Fig; 2) which meshes with-a similar gear 84 mounted upon the shaft 68. The gear 84has a yielding clutch connection with said shaft 68, as, for

ferringto Fi 1). It has been found that as -wardly.. In order to prevent suchtilting example, that shown in Figs. 3 and 12. As

therein indicated, the gear 84 is fast to a sleeve 85' which is rotatable upon the shaft 68: Fixed upon said shaft adjacent to one end of the sleeve 85 is a collar 86 having four equidistant notches 87 in its periphery. The sleeve '85 has a lug thereon to which are pivoted two arms 8'.) provided with teeth. 90 adapted to enter diametrically opposite notcin-s 87 in the collar 80. Resilient means 91 :u. .s upon the free ends of the arms 89 to yieldingly hold the teeth- 90 in the notches Should the movement of the conveyer chains be obstructed, the arms 89 will yield to permit slippage between the gear 81 and the shaft 68.

The bobbins discharged in a horizontal position by the conveyer are placed in an upright position, ready to be set upon the spindles of the spinning frame, by means of an erector arm 92 (Figs. 1, 2 and 3) op erating within a casing 93 and fixed upon a shaft 94- lnounted in a bearing 95 in the bracket 23. The shaft 91 is rocked by the following described means: A cam 96 is fixed upon the shaft 82 and is engaged by a roller stud 97 carried by an arm 98 fixed upon a shaft 99. The latter shaft is mounted in a bearing 100 in the bracket 23. Upon the opposite end of the shaft 99 is fixed an arm 101 provided with a segment 102 which meshes with a segment 103 fixed with relation to the shaft 91.

At the discharge end of the bobbin conveyor is suitable means extending to the erector casing 93 for controlling the movement of the bobbins into said casing. Said means includes two inclined guides 101- and 105 fixed at their upper ends to bosses 106 in the framework, the lower ends of said guides being connected by a bar 107. At opposite sides of the path taken by the bobbins in passing to the erector casing are guard or guide members 108 and 109. Above said path is a cover plate 110. To assist the lugs and in forcing the bobbins down the guides 10% and 105 I provide means arranged in position to engage the bobbins near the outer-ends of the tips of the bobbins, as, for example, a star wheel 'or plurality of radial fingers 111 fixed upon the end of the shaft 68.

The movement of the bobbins down the guides 104: and 105 is controlled by means of two spring-pressed fingers112 (Figs. 1 and l pivoted at 113 in position to bear upon the upper sides of the bobbins. Upon the under side of the cover plate 110, and above the path taken by the bobbin tips, is

a guide plate 116 to prevent upward dis-' come displaced oft the erector. 1n Fig. 2 most of the cover plate 110 and the fingers 112 are omitted for the sake of clearness. After erection by the arm 92 the bobbins may be directed to and placed upon the spindles by any suitable or well-hnown means. 4

I claim as my invention:

1. An empty-bobbin magazine comprising two open end-frames through both of which empty bobbins may be inserted and removed; a plurality of parallel cross-pieces extending across one of said frames; a like number of similar cross-pieces extending across the other frame and parallel with the first mentioned cross-pieces, the space between two adjacent cross-pieces being of proper Width and length to receive a single empty bobbin; and partition-forming elements each extending from one of the crosspieces in, one frame to the corresponding cross-piece in the other frame.

2. A bobbin magazine comprising two end-frames; cross-pieces extending from side to side within each frame; means extending between the end-frames and forming one side of the magazine, and also forming butt partitions; and tip-partitioning elements extending from the cross-pieces in one endframe to the cross-pieces in the'other endframe.

3. A bobbin magazine comprising two end-frames; cross-pieces extending from side to side Within each frame; an integral piece of sheet metal folded to form butt partitions and secured at its ends to the end-frames; and tip-partitioning elements extending from the cross-pieces in one end-frame to the crosspieces in the other end-frame.

4:. A bobbin magazine comprising two end-frames; cross-piecesextending from side to side within each frame; sheet metal folded to form butt partitions and secured to the end-frames, said partitions being cut away to receive said cross-pieces; and tippartitioning elements extending from the cross-pieces 'in one end-frame to the crosspieces in the other end-frame.

5. A. bobbin magazine comprising two end-frames; cross-pieces extendingfrom side to side Within each frame; butt-partitionforming means extending between the endframes at one side of the magazine, and tip-\ partitioning elements extending adjacent to the middle of the magazine, and from the cross-pieces in one end-frame to the crosspieces in the other end-frame.

6. A bobbin magazine comprising two end-frames; cross-pieces extending from side to side within one of said frames; means extending between the end-frames for forming bobbin partitions; and a closure adapted for insertion into the end-frame provided with cross-pieces, said cross-pieces being cut away to receive the closure.-

' 7. The combination of a bobbin magazine having butt-receiving spaces at one side and comprising tip-partitioning elements eX- te'nding longitudinally of the magazine near the middle thereof; a closure for the magazine; and means securing the closure to one end of the magazine between the butt-receiving spaces and the tip-partitioning elements.

8. In a doffer, a bobbin magazine having a bottom, two latches on the bottom for locking the latter in place, and means on the dolfer for operating said latches. v

- 9. In a dolfer, a bobbin magazine having a bottom and two bottom-locking latches slidable toward and away from each other, and means on the doffer for operating said latches.

10. In a dofi'er, a bobbin magazine having a bottom and a bottom-locking means, and a single means on the doffer for vertically moving the bottom and operating said looking means.

11. In a doffer, a dolfer framework, a bobbin magazine supported upon the framework and having a bottom and bottom-locking means, a lever pivoted in the framework, and devices operable by the lever for vertically moving the bottom and operating the locking means.

12. In a dofifer, a framework, a bobbin magazine supported upon the framework and having a bottom and bottom-locking means, a bottom-support movably mounted in the framework. means carried by said support for operating said locking means, and a single means for moving said support and actuating said lock-operating means.

13.'In combination, a framework, a bobbin magazine supported upon the framework, and having a bottom and bottom-locking means. a bottom-support movably mounted in the framework. means carried by said support for operating said locking means, a hand lever mounted in the framework, and means connected to said hand lever for moving said support and actuating said lock-operating means.

14. In combination. a framework, a bobbin magazine supported upon the framework, aiid having a bottom and bottom-locking means, a bottom support having a stem which is guided in the framework for vertical movement. means carried by said support for operating said locking means, a hand lever mounted in the framework, a cam movable by said lever into and out of position beneath said stem, and means moving with said cam for actuating said lockoperating means.

15. In combination, av framework, a. bobbin magazine supported upon the framework, and having a bottom and bottom-locking means, a bottom support having a stem which is guided in the framework for vertical movement, means carried by said support for operating said locking means, a hand lever pivoted in the framework, a cam plate attached to said lever and adapted to be swung into and out of position beneath said stem, and a cam member fixed to said cam plate and adapted to actuate said lockoperatmg means. 1

16. In combination, a framework, a bobbin magazine supported upon the framework and having a bottom, a latch mounted on the bottom for locking the latter to the ma gazme, a bottom support movably mounted in the framework, and spring-actuated means carried bysaid support for moving said latch into its inoperative position.

17. In combination, a framework, a bobbin magazine supported upon the framework and having a bottom, a latch on the bottom for locking the latter to the magazine, a bottom support movably mounted in the framework, a member pivoted on said support and adapted to engage said latch, spring-actuated means for moving said member to unlock the latch, and means for vertically moving said support and restoring said spring-actuated means.

18. In combination, a framework, a bobbin magazine supported upon the framework, and having a bottom, a latch on the bottom for locking the latter to the magazine, a bottom support having a stem which is guided in the framework for vertical movement, a member pivoted upon the bottom support and adapted to engage the latch, a rod mounted within said stem and connected at its upper end to said member, a spring tending to move saidrod downward with relation to the stem, and means for vertically moving said stem and for moving said rod upward with relation to the stem.

19. In combination. a bobb n magazine. a

bottom for the magazine, bottom locking means, and a single means for vertically moving the bottom and operating said locking means.

20. In a dofi'er. a bobbin magazine. a bobbin-conveyor forming a bottom for said magazine. said conveyer comprising a buttconveying chain and another chain engaging the bobbins relatively close to the butts, suitablv supported sprocket wheels for the receiving end of the convever, a shaft provided with sprocket wheels for the discharge end of said convever, a star wheel fixed on said shaft in position to engage the tips of the bobbins, and means for rotating said shaft.

21. The combination of a bobbin mag. zine. a bottom for the magazine. two bottom locking latches slidable toward and away zine, a bottom for the magazine, a latch. on the bottom for locking the bottom in place, a pivoted member engaging said latch, a rod connected to said member for swinging the latter, a spring tending to more the rod in one direction, and manually-operable means for moving said rod in the opposite direction.

In testimony whereof I hereunto affix my signature. in the presence of two witnesses.

BURT A. PETERSON.

\Vitnesses:

WV. C. R; HEYM, LOUISE A. CULvER. 

